PASSIVE VOICE
The passive voice is used when you want to express an action
placing more emphasis on the object that the person performing the action. For
example:
You boil the water for two minutes.
To form the passive voice, take the verb in question and makes a past participle. Then add the verb to be in conjugation and time corresponding to the new sujeto.Por example:
The police rescued the boy.
The boy was rescued by the police.
The first sentence is in active voice. The second, in the
passive voice.
The object of the first sentence (the boy) to be the subject in the sentence in the passive voice.
The verb of the first sentence (rescued) becomes "was rescued". Remember the rule: Take the past participle of the verb and add the verb to be conjugated in the corresponding time (in this case the past) and corresponds to the person (the boy).
The subject of the first sentence (the police) agent becomes a complement in the passive voice, by adding front. The add agent is not always placed in prayer. Only add if relevant.
ACTIVE
In most English sentences with an action verb, the subject performs the action denoted by the verb.
These examples show that the subject is doing the verb's action.
Because the subject does or "acts upon" the verb in such sentences, the sentences are said to be in the active voice.
TAG QUESTION
A question tag or tag question is a grammatical structure in which a declarative statement or an imperative is turned into a question by adding an interrogative fragment (the "tag"). For example, in the sentence "You're John, aren't you?", the statement "You're John" is turned into a question by the tag "aren't you". The term "question tag" is generally preferred by British grammarians, while their American counterparts prefer "tag question".
USES
In most languages, tag questions are more common in colloquial spoken usage than in formal written usage. They can be an indicator of politeness, emphasis or irony. They may suggest confidence or lack of confidence; they may be confrontational, defensive or tentative. Although they have the grammatical form of a question, they may differ from questions in that they do not expect an answer. In other cases, when they do expect a response, they may differ from straightforward questions in that they cue the listener as to what response is desired. In legal settings, tag questions can often be found in a leading question. According to a specialist children's lawyer at the NSPCC, children find it difficult to answer tag questions other than in accordance with the expectation of questioner.
